\contentsline {section}{\numberline {1}选定几何及材料参数}{2}{}%
\contentsline {section}{\numberline {2}有限单元法求解}{2}{}%
\contentsline {subsection}{\numberline {2.1}有限元模型}{2}{}%
\contentsline {subsection}{\numberline {2.2}计算结果}{2}{}%
\contentsline {section}{\numberline {3}假设模态法求解}{4}{}%
\contentsline {subsection}{\numberline {3.1}动能及势能}{4}{}%
\contentsline {subsection}{\numberline {3.2}刚度矩阵及质量矩阵}{4}{}%
\contentsline {subsection}{\numberline {3.3}假设振型及边界条件}{5}{}%
\contentsline {subsection}{\numberline {3.4}计算结果}{6}{}%
\contentsline {section}{\numberline {4}总结}{6}{}%
